Instruction/ maintenance manual of the product RT-20 Boss Audio Systems
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Thank you, and congratulations on your choice of BOSS RT-20 Rotary Sound Processor. Before using this unit, carefully read the sections entitled: “USING THE UNIT SAFELY” and “IMPORTANT NOTES” (separate sheet). These sections provide important information concerning the proper operation of the unit.
2 Contents Main Features .................................................. 1 Installing Batteries ........................................... 3 Making the Connections ................................... 4 Mono Connection .............................
3 Installing Batteries Batteries are supplied with the unit. The life of these batteries may be limited, however, since their primary purpose was to enable testing. Insert the included batteries as shown in figure, being careful to orient the batteries correctly.
4 Making the Connections • The use of an AC adaptor is recommended as the unit’s power consumption is relatively high. Should you prefer to use batteries, please use the alkaline type. • Noise may be produced if wireless communications devices, such as cell phones, are operated in the vicinity of this unit.
5 Making the Connections Mono Connection ■ Guitar fig.020 ■ Keyboard fig.030 Electric Guitar Guitar Amp AC Adaptor PSA series (sold separately) Set DRIVE TYPE switch to GUITAR Keyboard MTR Mixer S.
6 Making the Connections Stereo Connection ■ Guitar fig.060 ■ Keyboard fig.070 Effector Electric Guitar Guitar Amp AC Adaptor PSA series (sold separately) Set DRIVE TYPE switch to GUITAR Keyboard .
7 Operating the RT-20 Pedal Operation When “ON” When “OFF” Lit Off EFFECT ON/OFF Pedal Alternately switches the effect on or off each time the pedal is pressed.
8 Operating the RT-20 Panel Operation For this description of using the pedals, first press the EFFECT ON/OFF pedal to switch on the effect (ON/OFF indicator lit), and press the SLOW/FAST pedal to switch the setting to SLOW (SLOW/FAST indicator off). In addition, set the knobs to the positions shown in the figure.
9 Operating the RT-20 Adjusting the Balance of the HORN Rotor and BASS rotor volume You can adjust the balance in volume from the horn rotor and bass rotor inside the rotary speaker with the BALANCE knob. fig.081 Adjusting the Rotor’s Rotation Speed You can adjust the rotor rotation speed using the SLOW SPEED and FAST SPEED knobs.
10 Operating the RT-20 Operating the BRAKE You can use the brake to stop the rotation of the rotor. Pressing both of the pedals simultaneously stops the rotation of the rotor.
11 Front Panel Names of Things and What They Do RISE TIME Knob This adjusts the rate at which the rotation changes from slow to fast and vice versa. When this knob is at the center position, the rotary speaker rotation changes at the standard rate. MODE Knob Use this to select the rotary speaker effect from the four available types.
12 Names of Things and What They Do VIRTUAL ROTOR Display This display uses indicators and moving light beams to indicate the rotary speaker effect visually. The HORN rotor is indicated with the red light, the BASS rotor with blue. EFFECT ON/OFF Indicator This lights up when the effect is on.
13 Names of Things and What They Do Mode List The rotary speaker sound is modeled on the famed vintage Leslie 122 speaker. The MODE knob is used to switch between the rotary and overdrive tones. * The trademarks listed in this document are trademarks of their respective owners, which are separate companies from BOSS.
14 Names of Things and What They Do Rear Panel INPUT Jacks (INPUT A (MONO), INPUT B) These input jacks are used for connecting electric guitars, keyboards, other instruments, and effects processors. Connect mono instruments or effects to the A (MONO) jack.
15 Troubleshooting The power doesn’t come on. ❍ Is the guitar or keyboard connected correctly to the INPUT A (MONO) jack? → Check the connections again (p. 4–p. 6). * When running off batteries, the unit won’t switch on unless there’s something plugged into the INPUT jack.
16 Sample Settings * Set the DRIVE TYPE switch on the rear panel to match the type of instrument being used. ■ STANDARD SOUND ■ TREMOLO CHORUS ■ WILD SPIN ■ UNI-V.
17 Setting Memo.
18 Main Specifications RT-20: Rotary Sound Processor Nominal Input Level -20 dBu Input Impedance 1 M Ω Output Impedance 1 k Ω Recommended Load Impedance 10 k Ω or greater Display VIRTUAL ROTOR C.
19 * This device features light emitting diodes (LEDs), which with certain settings may repeatedly flash on and off at a rapid rate. Some persons may experience headaches or nausea by staring at such flashing lights. Cease looking at the LEDs immediately if this occurs.
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An important point after buying a device Boss Audio Systems RT-20 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Boss Audio Systems RT-20 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Boss Audio Systems RT-20 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Boss Audio Systems RT-20 you will learn all the available features of the product, as well as information on its operation. The information that you get Boss Audio Systems RT-20 will certainly help you make a decision on the purchase.
If you already are a holder of Boss Audio Systems RT-20, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Boss Audio Systems RT-20.
However, one of the most important roles played by the user manual is to help in solving problems with Boss Audio Systems RT-20. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Boss Audio Systems RT-20 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
